Window alarm



FIG. 1 is a front, isometric view thereof, showing my new design;

FIG. 2 is a rear, isometric view thereof, showing my new design;

FIG. 3 is a reduced scale, front elevational view thereof;

FIG. 4 is a reduced scale, rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof. 

The ornamental design for a window alarm, as shown and described. 